Invention Grant
US09385596B1 Charge pump circuit capable of reducing reverse currents 有权
电荷泵电路能够减少反向电流

Charge pump circuit capable of reducing reverse currents
Abstract:
A charge pump unit capable of reducing reverse current includes a first NMOS transistor, a first PMOS transistor, a second NMOS transistor, and a second PMOS transistor. The first NMOS transistor and the first PMOS transistor are coupled in series and are controlled by a first clock signal. The second NMOS transistor and the second PMOS transistor are coupled in series and are controlled by a second clock signal. The first NMOS transistor is for receiving a first input voltage and the second NMOS transistor is for receiving a second input voltage. The first clock signal and the second clock signal transit at different time points. A rising edge of the first clock signal leads a respective falling edge of the second clock signal.
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